Bin.



W. E. SANDERS.

BIN.

APPLIOATIQN FILED AUG. x1, 191s.

Patented Aug. 18, BH4( 1....... w ..v 'Mh IVI TNHSSES UNITED Simms PATENT Qww.,

.Yi-BUR E. SANDERS, GF SGNORA, CLIFCRllf.7 ASSIGNOR OF ONE-'HALE' TG ANNETTE J. CHAIVIBFRLAN) 0F BERKELEY, CALIPORNA,

AppicationjledAuguet1l,1913.

Specfmaion of Letters Patent ,ion mcommu, im

i a hin pos Afores-md.

SUPPLY from Hw my mus*L he return/mi L( 1h13 advantage m0, that it, is aelfwun UTP chute D-EF-G, for discharge. There fore, other things bein equal, until an amount of material equa tents of the space J-C-D has been returned to the bin, no material will discharge from the bin-chute7 the slope of the plane indicated by the line Jwl) approximating the slope of the angle of repose of the particular material being handled; and the material can not run or slide toward the chute until this angle has been reached or slightly exceeded. The mill must of necessity therefore suspend operations until the requirements for the delivery of the material from the bin are satisfied and the discharge thereof to the mill assured. Thus the advantage accruing from the storage of the material in the s aceJC`--D are counter.` balanced by the disadvantages of suspension ot' mill operations until an equal amount of material shall have been replaced within said space, and the delivery and discharge of the material at the bin-chute be reestablisherl. The flat-bottomed bin is also unfav orable to the free delivery of material t lche bin-chute in cases Where the material is wet or of a clayey consistence, such materiel refusing to run freely on similar material within thc hin. In such a case the slope angle or angle of repose (J--D-C) may 1ncrease almost to vcrticality, and in extreme cases the bin may become all but cloggm,K

lVith regard to the inclined-bottom bin, l

as for example that exhibited in vertical cross-section by the figure A--ll-vJi-D- GMA, wherein the lloor or bottom of the bin is estal'ilished approximately coincident with the inclined plane JMD, this conslruc- .tion affords immediato delivery at the chute,

ot free material dumped into the bin in the i usual way rfrom above. as shown in approxil mate outlini-l by the figure .fr-bwgmfc-fr 1 When however, the fates H, K, remain closed, the bin tends to lill up. the material coning approrinialelyy as shown by the ligure l the bottoni slope afforded by the inclined i to the cubic con l i r for all requirenunts, and yeti, the pitch of the inclined lloor thereof teuls to render this type ot' bin less stable than the more securely based llabbotlomed bin. Undoubl4 edly the inclinei'l-botlomed bin is less securely founrlationcd than is the broader based tlat bottomed bin, while the quantity of material it can aci")ii11i1o(l:1te is less than that capable of boing' stored within the flatbottomwl structure, by an amount substantially equal to the contents ol` the space .Intl-l). The shape ot' the inclined-bot` tomed bin being that ot' a wedge with its l edge downward, tends to causo the contained material to wedge and packiitself into the lower part of the structure with the result that the front frames of timber bins are sometimes forced and sprung outward unless securely braced. The floor of the inc1ined-bottomed bin is subject to shock by reason of heavy material fallin(lf thereon, While the abrasive effect of sliding fragments tends rapidly to wear this part of the structure. i

In the present embodiment of my invention I provide the flat-bottomedbin with an inclined falsebottom, leaf, or shelf, H-I supported in position'in the ybin in any suitable mechanical manner. The shelf may be either an integral or permanent part of the bin structure, or it may be removable, either method being contemplated by my invention. In my improvement the shelf H-I occupies a position approximately coincident with the plane J-D, representing the plane of the inclined floor or bottom of an inclinedbottomed bin, the crosssection of which is represented by the figure A-B- J--D--G-A, the upper 'face of said shelf presenting either a plane or otherwise fashioned surface. lt may be Statedin passing that the plane of the slope .Tw-D may coincide with the .inclination of the angle of repose of the material., or of even a steeper anle, but the inclination should always be su cient to cause a tlow of the material to ward the birrcliute. The lower ed e of the false leali or shelf lI---l is lifted a ove the dat bottom of 'the bin to such hei ht as to permit material lying stored behind seid leaf to be shovcled from beneath the same to and into the bin-chute D--E---l `--G, for discharge, whereby such stored material ma be removed desired and the bin em tie The upper edge l of this leaf extenos u ward to such a. point as will make certain the deflection by the leaf of the falling material from above (of, 0,-.6, C), along the course ffm-f y, and deliver the same to the bin-chute for discharge. Thus deflected, the 'falling material will till baciir beneath the lower edge ll of the leal` there forming (in section) the triangle LY-@meg over the upper side (1l-g of which the flowing material will .slide to the binehute as clearly obvious from the drawing (Fig l). This means essen tially immediate delivery at the chute for the discharging! of material from the bin while it is en'lpty. The torm which this fall ing und flowing material will assume will f appriiximutc the ligure f-7)--d- -vc'g---lcna. lf now the gutes K, K". ot the binchute are closed and the material continues to fall into the bin until it begins to ovcrflow at the upper edge I of the shelf ll-l, that which overflows will conc up upon the floor ol the bin until finally the material will have assumed approximately the figure o-L-c4-Z-m-fn,-bd-eg-f-G-j vz'wa. When however, the bin shall have been, lille'd, the space Zc--ZfJn-e-d-c lying beneath and. behind the leaf H-I, will have been filled from the overflow at I through `the building up of the cone L-m-u' uteriel contained Within the hin, equally with 5 the similar mass contained within the Het bottomed hin as above noted,6 is available for delivery and storage, and except the negligible quantity to he deduet-ed because of the false-bottom or lez-. H45, end its snpports-(i any), leaf H- .l een readily be apilied to e et-hotlome l or other hin already. con" delivery of' @ont Chute, and wither; lesseningr the storage l' Because of the inet the material will he for'my imposed mess into the e. neneet behind the leef or eheh ,llw-i, and for the saine reason there packed to e, degree where by it of itself fiets as a support for seid leaf and the leed resting' .thereon it is evident tli't the leaf will not he called, upon port 'unassisted any extraordinary of overlying,Y material, nor will nary strength be required in its construe tion. Rather must the leaf oeso estabk lished as to withstand successfully the impact of felling materiel end the abrasive action of sliding fregn'xents upon its fece. 'lo perform this service the leaf or shelf need bet relatively`v simple in eonstruetion, and may be readily strengthened, repeired and replaeed.

The superposition of theleaf or shelf H-v-I over the bottom (lr-"D of the bin, oonverts the latter into a combination latfhottomed and inclined-bottomed bin, in which combination are present the advantages of each type of bin, With the disadvantages in herent in each type as commonly constructed, entirely eliminated. ln other words, the presence of the leaf or shelf Hlml, 'insures the immediate delivery to the discharge.n chute of material introduced thereinto without affecting the storage capacity of the bin. By flat-bottomed as herein used is not necessarily meant a bin with a geometrically flat or plane horizontal bottom, hut any equivalent bottom depressed below the plane defining the inclination or slope of the angle of repose for the material handled (as for example the plane ,l1-D) and ity of the hin ne han lille Whereon the materiel will not run to (lis Whether the bin The term bin is to he understood to mean :myy container whatsoever and is not to be considered as restricted specifically to what :ire generally termed binsf'f It vwill be seen by an examina-tionof Fig. l that the outer side l1-g of the triangle (L-a-g forms in effect an extension ofthe upper face of the shelf H--I, which is itself disposed in the plane J-D defining the slope of the angle of repose of the fluent material; and since the bott-om D-E of the disehmgeehnte is virtually coincident with the pl 5WD, it follows that be lull or not, the material charged thereinto will always be properly directed to the point of discharge along the inclined plane leading to said discharge it. ll thevlin empty, the material failing on the Al"elf lfwl 'will be directed hy il'4 immediate ,y lo the diseliargeehute, or rle we-g' builds up, the ireoted over the .face fir-g th "eeharge-ehube. By i of course, ie meent the ieli ie repreoiierred to( of' 1nin from ti-: Y ite leeds may he reled es the iront well, the oppositenvsll 'the rear well. The eelt" HMI is l spirited from 'both of seid walls; it is spaced from the roer well to allow the nur teriel to :ieenni'nlate behield sind under the and it is spseed ne 'front Wall fe sedia-rient openifig he' veen the .dan lie feint off: 'the shelf for n the meterlo-l accumulsted under the. hein into the ahnte for discharge when occasion :arises To drenv on said material. The shelf too, hy virtue of its position divides the hie. into intercom- :nnnieating compartments, one below the shelf and he other shore the shelf, as clearly appellent from Fig, l.

The disposition o the shelf HMI be tween the side of the bin and spaced from the front and reer Wells as described, is not the only'one contemplated by my in- \f'ention; neither need lheshelf be restricted' to a member tor which the term shelf or leali is he roost appropriatedesignation, g or ,t that my invention conthe interposition of any other device, in the path of the materiel merged into the hin from above, whereby ierial charged will ne directed ny i -lreinher to the discharge opening or t for immediate de- In other words the invention contemplates the use of any device having an upper surface disposed at the proper slope to direct the materiel resting or impinging t0 bottoni sind purposes of upon ite toward the discharge opening of the bin, it being understood that such device may be either permanent orremovable, and

loe

suchesito allow material to 'store and peek bottom thereof and spaced from lseid botbehindA it, and permit the material thus tbm and from the discharge opening, and

stored, to be shoveled from behind the device and the bin be thus emptied. 5- Havingdescribcd my invention, what I claim i's:I

In vcombinatonwith e Hat-bottomed bin having-a bottom discharge opening and chargeable from a point above said open- 10 ing, a slelf positioned in thebin above the operatin to direct the material charged into the in, toward said discharge opening.

In testimon whereof I aflix my signature, 1'5 in presence o two witnesses.

' WILBUR E. SANDERS. Witnesses:

HENnmrrA C. SANDERS, F. P. Ons. 

